Home / 10,386.08-15,554.28-5,990.21

Finding the Fourth Proportional to 10,386.08, 15,554.28 and 5,990.21

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Solution

The fourth proportional to 10,386.08, 15,554.28 and 5,990.21 is: 8,970.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.08 : 15,554.28 = 5,990.21 : x
  2. Step 2: Convert to fraction form
    10,386.08/15,554.28 = 5,990.21/x
  3. Step 3: Cross multiply
    10,386.08x = 15,554.28 × 5,990.21
  4. Step 4: Simplify right side
    10,386.08x = 93,173,403.60
  5. Step 5: Solve for x
    x = 93,173,403.60/10,386.08
  6. Step 6: Final answer
    x = 8,970.99

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.