Home / 15,246.58-21,038.36-8,875.23

Finding the Fourth Proportional to 15,246.58, 21,038.36 and 8,875.23

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Solution

The fourth proportional to 15,246.58, 21,038.36 and 8,875.23 is: 12,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,246.58 : 21,038.36 = 8,875.23 : x
  2. Step 2: Convert to fraction form
    15,246.58/21,038.36 = 8,875.23/x
  3. Step 3: Cross multiply
    15,246.58x = 21,038.36 × 8,875.23
  4. Step 4: Simplify right side
    15,246.58x = 186,720,283.82
  5. Step 5: Solve for x
    x = 186,720,283.82/15,246.58
  6. Step 6: Final answer
    x = 12,246.70

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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.