Home / 15,007.04-20,710.72-8,635.76

Finding the Fourth Proportional to 15,007.04, 20,710.72 and 8,635.76

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Solution

The fourth proportional to 15,007.04, 20,710.72 and 8,635.76 is: 11,917.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.04 : 20,710.72 = 8,635.76 : x
  2. Step 2: Convert to fraction form
    15,007.04/20,710.72 = 8,635.76/x
  3. Step 3: Cross multiply
    15,007.04x = 20,710.72 × 8,635.76
  4. Step 4: Simplify right side
    15,007.04x = 178,852,807.35
  5. Step 5: Solve for x
    x = 178,852,807.35/15,007.04
  6. Step 6: Final answer
    x = 11,917.93

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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.