Home / 7,038.72-10,513.12-6,370.60

Finding the Fourth Proportional to 7,038.72, 10,513.12 and 6,370.60

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Solution

The fourth proportional to 7,038.72, 10,513.12 and 6,370.60 is: 9,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.72 : 10,513.12 = 6,370.60 : x
  2. Step 2: Convert to fraction form
    7,038.72/10,513.12 = 6,370.60/x
  3. Step 3: Cross multiply
    7,038.72x = 10,513.12 × 6,370.60
  4. Step 4: Simplify right side
    7,038.72x = 66,974,840.06
  5. Step 5: Solve for x
    x = 66,974,840.06/7,038.72
  6. Step 6: Final answer
    x = 9,515.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.