Home / 15,700.13-21,666.39-8,626.50

Finding the Fourth Proportional to 15,700.13, 21,666.39 and 8,626.50

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Solution

The fourth proportional to 15,700.13, 21,666.39 and 8,626.50 is: 11,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.13 : 21,666.39 = 8,626.50 : x
  2. Step 2: Convert to fraction form
    15,700.13/21,666.39 = 8,626.50/x
  3. Step 3: Cross multiply
    15,700.13x = 21,666.39 × 8,626.50
  4. Step 4: Simplify right side
    15,700.13x = 186,905,080.99
  5. Step 5: Solve for x
    x = 186,905,080.99/15,700.13
  6. Step 6: Final answer
    x = 11,904.68

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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.