Home / 13,510.89-20,252.57-7,655.13

Finding the Fourth Proportional to 13,510.89, 20,252.57 and 7,655.13

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Solution

The fourth proportional to 13,510.89, 20,252.57 and 7,655.13 is: 11,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.89 : 20,252.57 = 7,655.13 : x
  2. Step 2: Convert to fraction form
    13,510.89/20,252.57 = 7,655.13/x
  3. Step 3: Cross multiply
    13,510.89x = 20,252.57 × 7,655.13
  4. Step 4: Simplify right side
    13,510.89x = 155,036,017.91
  5. Step 5: Solve for x
    x = 155,036,017.91/13,510.89
  6. Step 6: Final answer
    x = 11,474.89

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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.