Home / 13,527.28-18,666.98-7,557.76

Finding the Fourth Proportional to 13,527.28, 18,666.98 and 7,557.76

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Solution

The fourth proportional to 13,527.28, 18,666.98 and 7,557.76 is: 10,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.28 : 18,666.98 = 7,557.76 : x
  2. Step 2: Convert to fraction form
    13,527.28/18,666.98 = 7,557.76/x
  3. Step 3: Cross multiply
    13,527.28x = 18,666.98 × 7,557.76
  4. Step 4: Simplify right side
    13,527.28x = 141,080,554.76
  5. Step 5: Solve for x
    x = 141,080,554.76/13,527.28
  6. Step 6: Final answer
    x = 10,429.34

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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.