Home / 13,663.14-20,490.65-5,870.13

Finding the Fourth Proportional to 13,663.14, 20,490.65 and 5,870.13

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Solution

The fourth proportional to 13,663.14, 20,490.65 and 5,870.13 is: 8,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.14 : 20,490.65 = 5,870.13 : x
  2. Step 2: Convert to fraction form
    13,663.14/20,490.65 = 5,870.13/x
  3. Step 3: Cross multiply
    13,663.14x = 20,490.65 × 5,870.13
  4. Step 4: Simplify right side
    13,663.14x = 120,282,779.28
  5. Step 5: Solve for x
    x = 120,282,779.28/13,663.14
  6. Step 6: Final answer
    x = 8,803.45

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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.