Home / 10,312.30-15,468.45-7,031.80

Finding the Fourth Proportional to 10,312.30, 15,468.45 and 7,031.80

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Solution

The fourth proportional to 10,312.30, 15,468.45 and 7,031.80 is: 10,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.30 : 15,468.45 = 7,031.80 : x
  2. Step 2: Convert to fraction form
    10,312.30/15,468.45 = 7,031.80/x
  3. Step 3: Cross multiply
    10,312.30x = 15,468.45 × 7,031.80
  4. Step 4: Simplify right side
    10,312.30x = 108,771,046.71
  5. Step 5: Solve for x
    x = 108,771,046.71/10,312.30
  6. Step 6: Final answer
    x = 10,547.70

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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.