Home / 18,700.52-28,075.28-13,156.47

Finding the Fourth Proportional to 18,700.52, 28,075.28 and 13,156.47

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Solution

The fourth proportional to 18,700.52, 28,075.28 and 13,156.47 is: 19,751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.52 : 28,075.28 = 13,156.47 : x
  2. Step 2: Convert to fraction form
    18,700.52/28,075.28 = 13,156.47/x
  3. Step 3: Cross multiply
    18,700.52x = 28,075.28 × 13,156.47
  4. Step 4: Simplify right side
    18,700.52x = 369,371,513.28
  5. Step 5: Solve for x
    x = 369,371,513.28/18,700.52
  6. Step 6: Final answer
    x = 19,751.94

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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.