Home / 8,307.63-12,445.45-6,543.30

Finding the Fourth Proportional to 8,307.63, 12,445.45 and 6,543.30

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Solution

The fourth proportional to 8,307.63, 12,445.45 and 6,543.30 is: 9,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.63 : 12,445.45 = 6,543.30 : x
  2. Step 2: Convert to fraction form
    8,307.63/12,445.45 = 6,543.30/x
  3. Step 3: Cross multiply
    8,307.63x = 12,445.45 × 6,543.30
  4. Step 4: Simplify right side
    8,307.63x = 81,434,312.99
  5. Step 5: Solve for x
    x = 81,434,312.99/8,307.63
  6. Step 6: Final answer
    x = 9,802.35

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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.