Home / 13,070.16-18,036.23-7,404.80

Finding the Fourth Proportional to 13,070.16, 18,036.23 and 7,404.80

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Solution

The fourth proportional to 13,070.16, 18,036.23 and 7,404.80 is: 10,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.16 : 18,036.23 = 7,404.80 : x
  2. Step 2: Convert to fraction form
    13,070.16/18,036.23 = 7,404.80/x
  3. Step 3: Cross multiply
    13,070.16x = 18,036.23 × 7,404.80
  4. Step 4: Simplify right side
    13,070.16x = 133,554,567.21
  5. Step 5: Solve for x
    x = 133,554,567.21/13,070.16
  6. Step 6: Final answer
    x = 10,218.28

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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.