Home / 15,699.70-21,649.28-10,925.05

Finding the Fourth Proportional to 15,699.70, 21,649.28 and 10,925.05

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Solution

The fourth proportional to 15,699.70, 21,649.28 and 10,925.05 is: 15,065.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.70 : 21,649.28 = 10,925.05 : x
  2. Step 2: Convert to fraction form
    15,699.70/21,649.28 = 10,925.05/x
  3. Step 3: Cross multiply
    15,699.70x = 21,649.28 × 10,925.05
  4. Step 4: Simplify right side
    15,699.70x = 236,519,466.46
  5. Step 5: Solve for x
    x = 236,519,466.46/15,699.70
  6. Step 6: Final answer
    x = 15,065.22

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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.