Home / 14,254.55-19,670.44-7,880.76

Finding the Fourth Proportional to 14,254.55, 19,670.44 and 7,880.76

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Solution

The fourth proportional to 14,254.55, 19,670.44 and 7,880.76 is: 10,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.55 : 19,670.44 = 7,880.76 : x
  2. Step 2: Convert to fraction form
    14,254.55/19,670.44 = 7,880.76/x
  3. Step 3: Cross multiply
    14,254.55x = 19,670.44 × 7,880.76
  4. Step 4: Simplify right side
    14,254.55x = 155,018,026.51
  5. Step 5: Solve for x
    x = 155,018,026.51/14,254.55
  6. Step 6: Final answer
    x = 10,874.98

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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.