Home / 15,810.38-21,820.98-10,703.58

Finding the Fourth Proportional to 15,810.38, 21,820.98 and 10,703.58

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Solution

The fourth proportional to 15,810.38, 21,820.98 and 10,703.58 is: 14,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.38 : 21,820.98 = 10,703.58 : x
  2. Step 2: Convert to fraction form
    15,810.38/21,820.98 = 10,703.58/x
  3. Step 3: Cross multiply
    15,810.38x = 21,820.98 × 10,703.58
  4. Step 4: Simplify right side
    15,810.38x = 233,562,605.11
  5. Step 5: Solve for x
    x = 233,562,605.11/15,810.38
  6. Step 6: Final answer
    x = 14,772.74

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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.