Home / 15,868.24-21,907.02-10,840

Finding the Fourth Proportional to 15,868.24, 21,907.02 and 10,840

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Solution

The fourth proportional to 15,868.24, 21,907.02 and 10,840 is: 14,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.24 : 21,907.02 = 10,840 : x
  2. Step 2: Convert to fraction form
    15,868.24/21,907.02 = 10,840/x
  3. Step 3: Cross multiply
    15,868.24x = 21,907.02 × 10,840
  4. Step 4: Simplify right side
    15,868.24x = 237,472,096.80
  5. Step 5: Solve for x
    x = 237,472,096.80/15,868.24
  6. Step 6: Final answer
    x = 14,965.24

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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.