Home / 13,036.50-17,990.40-7,068.18

Finding the Fourth Proportional to 13,036.50, 17,990.40 and 7,068.18

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Solution

The fourth proportional to 13,036.50, 17,990.40 and 7,068.18 is: 9,754.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.50 : 17,990.40 = 7,068.18 : x
  2. Step 2: Convert to fraction form
    13,036.50/17,990.40 = 7,068.18/x
  3. Step 3: Cross multiply
    13,036.50x = 17,990.40 × 7,068.18
  4. Step 4: Simplify right side
    13,036.50x = 127,159,385.47
  5. Step 5: Solve for x
    x = 127,159,385.47/13,036.50
  6. Step 6: Final answer
    x = 9,754.10

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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.