Home / 18,700.53-28,075.29-13,156.47

Finding the Fourth Proportional to 18,700.53, 28,075.29 and 13,156.47

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Solution

The fourth proportional to 18,700.53, 28,075.29 and 13,156.47 is: 19,751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.53 : 28,075.29 = 13,156.47 : x
  2. Step 2: Convert to fraction form
    18,700.53/28,075.29 = 13,156.47/x
  3. Step 3: Cross multiply
    18,700.53x = 28,075.29 × 13,156.47
  4. Step 4: Simplify right side
    18,700.53x = 369,371,710.63
  5. Step 5: Solve for x
    x = 369,371,710.63/18,700.53
  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.