Home / 11,510.30-15,903.96-8,880.32

Finding the Fourth Proportional to 11,510.30, 15,903.96 and 8,880.32

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Solution

The fourth proportional to 11,510.30, 15,903.96 and 8,880.32 is: 12,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.30 : 15,903.96 = 8,880.32 : x
  2. Step 2: Convert to fraction form
    11,510.30/15,903.96 = 8,880.32/x
  3. Step 3: Cross multiply
    11,510.30x = 15,903.96 × 8,880.32
  4. Step 4: Simplify right side
    11,510.30x = 141,232,254.07
  5. Step 5: Solve for x
    x = 141,232,254.07/11,510.30
  6. Step 6: Final answer
    x = 12,270.08

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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.