Home / 10,239.08-15,345.21-9,981.50

Finding the Fourth Proportional to 10,239.08, 15,345.21 and 9,981.50

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Solution

The fourth proportional to 10,239.08, 15,345.21 and 9,981.50 is: 14,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.08 : 15,345.21 = 9,981.50 : x
  2. Step 2: Convert to fraction form
    10,239.08/15,345.21 = 9,981.50/x
  3. Step 3: Cross multiply
    10,239.08x = 15,345.21 × 9,981.50
  4. Step 4: Simplify right side
    10,239.08x = 153,168,213.62
  5. Step 5: Solve for x
    x = 153,168,213.62/10,239.08
  6. Step 6: Final answer
    x = 14,959.18

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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.