Home / 8,386.50-11,570.42-5,030.40

Finding the Fourth Proportional to 8,386.50, 11,570.42 and 5,030.40

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Solution

The fourth proportional to 8,386.50, 11,570.42 and 5,030.40 is: 6,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,386.50 : 11,570.42 = 5,030.40 : x
  2. Step 2: Convert to fraction form
    8,386.50/11,570.42 = 5,030.40/x
  3. Step 3: Cross multiply
    8,386.50x = 11,570.42 × 5,030.40
  4. Step 4: Simplify right side
    8,386.50x = 58,203,840.77
  5. Step 5: Solve for x
    x = 58,203,840.77/8,386.50
  6. Step 6: Final answer
    x = 6,940.18

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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.