Home / 15,263.64-21,062.80-8,547.72

Finding the Fourth Proportional to 15,263.64, 21,062.80 and 8,547.72

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Solution

The fourth proportional to 15,263.64, 21,062.80 and 8,547.72 is: 11,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,263.64 : 21,062.80 = 8,547.72 : x
  2. Step 2: Convert to fraction form
    15,263.64/21,062.80 = 8,547.72/x
  3. Step 3: Cross multiply
    15,263.64x = 21,062.80 × 8,547.72
  4. Step 4: Simplify right side
    15,263.64x = 180,038,916.82
  5. Step 5: Solve for x
    x = 180,038,916.82/15,263.64
  6. Step 6: Final answer
    x = 11,795.28

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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.