Home / 15,783.28-23,666.48-4,688.40

Finding the Fourth Proportional to 15,783.28, 23,666.48 and 4,688.40

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Solution

The fourth proportional to 15,783.28, 23,666.48 and 4,688.40 is: 7,030.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.28 : 23,666.48 = 4,688.40 : x
  2. Step 2: Convert to fraction form
    15,783.28/23,666.48 = 4,688.40/x
  3. Step 3: Cross multiply
    15,783.28x = 23,666.48 × 4,688.40
  4. Step 4: Simplify right side
    15,783.28x = 110,957,924.83
  5. Step 5: Solve for x
    x = 110,957,924.83/15,783.28
  6. Step 6: Final answer
    x = 7,030.09

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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.