Home / 10,935.79-15,090.95-6,460.99

Finding the Fourth Proportional to 10,935.79, 15,090.95 and 6,460.99

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Solution

The fourth proportional to 10,935.79, 15,090.95 and 6,460.99 is: 8,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.79 : 15,090.95 = 6,460.99 : x
  2. Step 2: Convert to fraction form
    10,935.79/15,090.95 = 6,460.99/x
  3. Step 3: Cross multiply
    10,935.79x = 15,090.95 × 6,460.99
  4. Step 4: Simplify right side
    10,935.79x = 97,502,455.47
  5. Step 5: Solve for x
    x = 97,502,455.47/10,935.79
  6. Step 6: Final answer
    x = 8,915.91

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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.