Home / 18,368.77-25,349.10-9,985.27

Finding the Fourth Proportional to 18,368.77, 25,349.10 and 9,985.27

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Solution

The fourth proportional to 18,368.77, 25,349.10 and 9,985.27 is: 13,779.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.77 : 25,349.10 = 9,985.27 : x
  2. Step 2: Convert to fraction form
    18,368.77/25,349.10 = 9,985.27/x
  3. Step 3: Cross multiply
    18,368.77x = 25,349.10 × 9,985.27
  4. Step 4: Simplify right side
    18,368.77x = 253,117,544.38
  5. Step 5: Solve for x
    x = 253,117,544.38/18,368.77
  6. Step 6: Final answer
    x = 13,779.78

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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.