Home / 15,526.77-21,423.29-8,810.88

Finding the Fourth Proportional to 15,526.77, 21,423.29 and 8,810.88

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Solution

The fourth proportional to 15,526.77, 21,423.29 and 8,810.88 is: 12,156.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.77 : 21,423.29 = 8,810.88 : x
  2. Step 2: Convert to fraction form
    15,526.77/21,423.29 = 8,810.88/x
  3. Step 3: Cross multiply
    15,526.77x = 21,423.29 × 8,810.88
  4. Step 4: Simplify right side
    15,526.77x = 188,758,037.40
  5. Step 5: Solve for x
    x = 188,758,037.40/15,526.77
  6. Step 6: Final answer
    x = 12,156.94

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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.