Home / 8,870.31-13,307.05-4,428.41

Finding the Fourth Proportional to 8,870.31, 13,307.05 and 4,428.41

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Solution

The fourth proportional to 8,870.31, 13,307.05 and 4,428.41 is: 6,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.31 : 13,307.05 = 4,428.41 : x
  2. Step 2: Convert to fraction form
    8,870.31/13,307.05 = 4,428.41/x
  3. Step 3: Cross multiply
    8,870.31x = 13,307.05 × 4,428.41
  4. Step 4: Simplify right side
    8,870.31x = 58,929,012.29
  5. Step 5: Solve for x
    x = 58,929,012.29/8,870.31
  6. Step 6: Final answer
    x = 6,643.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.