Home / 10,088.30-15,117.60-7,320.80

Finding the Fourth Proportional to 10,088.30, 15,117.60 and 7,320.80

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Solution

The fourth proportional to 10,088.30, 15,117.60 and 7,320.80 is: 10,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,088.30 : 15,117.60 = 7,320.80 : x
  2. Step 2: Convert to fraction form
    10,088.30/15,117.60 = 7,320.80/x
  3. Step 3: Cross multiply
    10,088.30x = 15,117.60 × 7,320.80
  4. Step 4: Simplify right side
    10,088.30x = 110,672,926.08
  5. Step 5: Solve for x
    x = 110,672,926.08/10,088.30
  6. Step 6: Final answer
    x = 10,970.42

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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.