Home / 15,683.93-21,643.86-8,610.81

Finding the Fourth Proportional to 15,683.93, 21,643.86 and 8,610.81

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Solution

The fourth proportional to 15,683.93, 21,643.86 and 8,610.81 is: 11,882.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.93 : 21,643.86 = 8,610.81 : x
  2. Step 2: Convert to fraction form
    15,683.93/21,643.86 = 8,610.81/x
  3. Step 3: Cross multiply
    15,683.93x = 21,643.86 × 8,610.81
  4. Step 4: Simplify right side
    15,683.93x = 186,371,068.82
  5. Step 5: Solve for x
    x = 186,371,068.82/15,683.93
  6. Step 6: Final answer
    x = 11,882.93

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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.