Home / 18,488.19-25,510.77-10,530.57

Finding the Fourth Proportional to 18,488.19, 25,510.77 and 10,530.57

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Solution

The fourth proportional to 18,488.19, 25,510.77 and 10,530.57 is: 14,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.19 : 25,510.77 = 10,530.57 : x
  2. Step 2: Convert to fraction form
    18,488.19/25,510.77 = 10,530.57/x
  3. Step 3: Cross multiply
    18,488.19x = 25,510.77 × 10,530.57
  4. Step 4: Simplify right side
    18,488.19x = 268,642,949.24
  5. Step 5: Solve for x
    x = 268,642,949.24/18,488.19
  6. Step 6: Final answer
    x = 14,530.52

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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.