Home / 10,929.13-15,081.03-6,681.23

Finding the Fourth Proportional to 10,929.13, 15,081.03 and 6,681.23

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Solution

The fourth proportional to 10,929.13, 15,081.03 and 6,681.23 is: 9,219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.13 : 15,081.03 = 6,681.23 : x
  2. Step 2: Convert to fraction form
    10,929.13/15,081.03 = 6,681.23/x
  3. Step 3: Cross multiply
    10,929.13x = 15,081.03 × 6,681.23
  4. Step 4: Simplify right side
    10,929.13x = 100,759,830.07
  5. Step 5: Solve for x
    x = 100,759,830.07/10,929.13
  6. Step 6: Final answer
    x = 9,219.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.